在导航栏中创建一个副标题

Question

在iOS中，您可以使用以下内容创建标题：

self.navBar.title = @"";

我在头文件中设置了navBar。

是否还有subTitle / Description的内容？

我在description后输入.后发现self.navBar，我想也许我可以对此做些什么？

Answer 1

使用self.navBar.navigationItem.prompt = @"This is the subtitle";

来自UIKit的基础UINavigationViewController。

Answer 2

solution

的Objective-C代码

UILable *title = [[UILabel alloc]init];
UILabel *subtitle = [[UILabel alloc]init];

[title setFont:[UIFont systemFontOfSize:12]];
[title setTextColor:[UIColor whiteColor]];
[title setFont:[UIFont systemFontOfSize:17]];
[title sizeToFit];
title.text = @"Title";

[subtitle setTextColor:[UIColor whiteColor]];
[subtitle setFont:[UIFont systemFontOfSize:12]];
[subtitle setTextAlignment:NSTextAlignmentCenter];
[subtitle sizeToFit];
subtitle.text = @"Subtitle Title";

UIStackView *stackVw = [[UIStackView alloc]initWithArrangedSubviews:@[title,subtitle]];
stackVw.distribution = UIStackViewDistributionEqualCentering;
stackVw.axis = UILayoutConstraintAxisVertical;
stackVw.alignment =UIStackViewAlignmentCenter;


[stackVw setFrame:CGRectMake(0, 0, MAX(title.frame.size.width, subtitle.frame.size.width), 35)];
self.navigationItem.titleView = stackVw;